262 research outputs found
Assessing the Financial Health of Medicaid Managed Care Plans and the Quality of Patient Care They Provide
Examines the administrative and medical expenses, quality of care, and financial stability of publicly traded health plans contracted to manage the care of Medicaid beneficiaries by plan characteristics and compared with non-publicly traded plans
Estimating the Impact of the Medical Loss Ratio Rule: A State-by-State Analysis
Outlines the healthcare reform law's requirement that insurers spend a minimum ratio of 80 to 85 percent of premiums on medical care expenses or rebate the difference to policy holders. Estimates rebates in each state if it had been in effect in 2010
Insurers' Responses to Regulation of Medical Loss Ratios
The Affordable Care Act's medical loss ratio (MLR) rule requires health insurers to pay out at least 80 percent of premiums for medical claims and quality improvement, as opposed to administrative costs and profits. This issue brief examines whether insurers have reduced administrative costs and profit margins in response to the new MLR rule. In 2011, the first year under the rule, insurers reduced administrative costs nationally, with the greatest decrease -- over 200 million each. In the individual market, insurers passed these savings on to consumers by reducing their profits even more than administrative costs. But in the large- and smallgroup markets, lower administrative costs were offset by increased profits of a similar amount. Stronger measures may be needed if consumers are to benefit from reduced overhead costs in the group insurance markets
How Has the Affordable Care Act Affected Health Insurers' Financial Performance?
Starting in 2014, the Affordable Care Act transformed the market for individual health insurance by changing how insurance is sold and by subsidizing coverage for millions of new purchasers. Insurers, who had no previous experience under these market conditions, competed actively but faced uncertainty in how to price their products. This issue brief uses newly available data to understand how health insurers fared financially during the ACA's first year of full reforms. Overall, health insurers' financial performance began to show some strain in 2014, but the ACA's reinsurance program substantially buffered the negative effects for most insurers. Although a quarter of insurers did substantially worse than others, experience under the new market rules could improve the accuracy of pricing decisions in subsequent years
Corner and finger formation in Hele--Shaw flow with kinetic undercooling regularisation
We examine the effect of a kinetic undercooling condition on the evolution of
a free boundary in Hele--Shaw flow, in both bubble and channel geometries. We
present analytical and numerical evidence that the bubble boundary is unstable
and may develop one or more corners in finite time, for both expansion and
contraction cases. This loss of regularity is interesting because it occurs
regardless of whether the less viscous fluid is displacing the more viscous
fluid, or vice versa. We show that small contracting bubbles are described to
leading order by a well-studied geometric flow rule. Exact solutions to this
asymptotic problem continue past the corner formation until the bubble
contracts to a point as a slit in the limit. Lastly, we consider the evolving
boundary with kinetic undercooling in a Saffman--Taylor channel geometry. The
boundary may either form corners in finite time, or evolve to a single long
finger travelling at constant speed, depending on the strength of kinetic
undercooling. We demonstrate these two different behaviours numerically. For
the travelling finger, we present results of a numerical solution method
similar to that used to demonstrate the selection of discrete fingers by
surface tension. With kinetic undercooling, a continuum of corner-free
travelling fingers exists for any finger width above a critical value, which
goes to zero as the kinetic undercooling vanishes. We have not been able to
compute the discrete family of analytic solutions, predicted by previous
asymptotic analysis, because the numerical scheme cannot distinguish between
solutions characterised by analytic fingers and those which are corner-free but
non-analytic
The Federal Medical Loss Ratio Rule: Implications for Consumers in Year 3
For the past three years, the Affordable Care Act has required health insurers to pay out a minimum percentage of premiums in medical claims or quality improvement expenses—known as a medical loss ratio (MLR). Insurers with MLRs below the minimum must rebate the difference to consumers. This issue brief finds that total rebates for 2013 were 5 billion. This was achieved without a great exodus of insurers from the market
What's Behind Health Insurance Rate Increases? An Examination of What Insurers Reported to the Federal Government in 2013-2014
The Affordable Care Act requires health insurers to justify rate increases that are 10 percent or more for nongrandfathered plans in the individual and small-group markets. Analyzing these filings for renewals taking effect from mid-2013 through mid-2014, this brief finds that the average rate increase submitted for review was 13 percent. Insurers attributed the great bulk of these larger rate increases to routine factors such as trends in medical costs. Most insurers did not attribute any portion of these medical cost trends to factors related to the Affordable Care Act. The ACA-related factors mentioned most often were nonmedical: the new federal taxes on insurers, and the fee for the transitional reinsurance program. On average, insurers that quantified any ACA impact attributed about a third to these new ACA assessments
The Federal Medical Loss Ratio Rule: Implications for Consumers in Year Two
For the past two years, the Affordable Care Act has required health insurers to pay out a minimum percentage of premiums in the form of medical claims or quality improvement expenses—known as a medical loss ratio (MLR). Insurers with MLRs below the minimum must rebate the difference to consumers. This issue brief finds that total rebates for 2012 were 1.4 billion. In the first two years under this regulation, total consumer benefits related to the medical loss ratio—both rebates and reduced overhead—amounted to more than $3 billion
Saffman-Taylor fingers with kinetic undercooling
The mathematical model of a steadily propagating Saffman-Taylor finger in a
Hele-Shaw channel has applications to two-dimensional interacting streamer
discharges which are aligned in a periodic array. In the streamer context, the
relevant regularisation on the interface is not provided by surface tension,
but instead has been postulated to involve a mechanism equivalent to kinetic
undercooling, which acts to penalise high velocities and prevent blow-up of the
unregularised solution. Previous asymptotic results for the Hele-Shaw finger
problem with kinetic undercooling suggest that for a given value of the kinetic
undercooling parameter, there is a discrete set of possible finger shapes, each
analytic at the nose and occupying a different fraction of the channel width.
In the limit in which the kinetic undercooling parameter vanishes, the fraction
for each family approaches 1/2, suggesting that this 'selection' of 1/2 by
kinetic undercooling is qualitatively similar to the well-known analogue with
surface tension. We treat the numerical problem of computing these
Saffman-Taylor fingers with kinetic undercooling, which turns out to be more
subtle than the analogue with surface tension, since kinetic undercooling
permits finger shapes which are corner-free but not analytic. We provide
numerical evidence for the selection mechanism by setting up a problem with
both kinetic undercooling and surface tension, and numerically taking the limit
that the surface tension vanishes.Comment: 10 pages, 6 figures, accepted for publication by Physical Review
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